For targets where SEH exceptions are used by default (on MinGW,
only x86_64 so far), -munwind-tables are added automatically. If
-fseh-exeptions is enabled on a target where SEH exeptions are
availble but not enabled by default yet (aarch64), we need to
pass -munwind-tables if -fseh-exceptions was specified.
Differential Revision: https://reviews.llvm.org/D55749
llvm-svn: 349452
-fseh-exceptions is only meaningful for MinGW targets, and that driver
already has logic to pass either -fdwarf-exceptions or -fseh-exceptions
as appropriate. -fseh-exceptions is just a no-op for MSVC triples, and
passing it to cc1 causes unnecessary confusion.
Differential Revision: https://reviews.llvm.org/D47850
llvm-svn: 334145